August weather forecastBarnwell, SC
August
Weather in August
The last month of the summer, August, is another tropical month in Barnwell, South Carolina, with an average temperature varying between 89.2°F (31.8°C) and 72.7°F (22.6°C).Temperature
With the start of August, Barnwell measures an average high-temperature of a still tropical 89.2°F (31.8°C), not significantly differing from July's 90.9°F (32.7°C). In Barnwell, the average temperature during the nights of August drops to a pleasant 72.7°F (22.6°C).Heat index
During August, the heat index is computed to be a scorching 107.6°F (42°C). Additional precautions are required to avert heat cramps and heat exhaustion. Persistent activity may culminate in heatstroke.Be informed that the heat index values are oriented around shady conditions and gentle breezes. The heat index could see an increase by 15 Fahrenheit (8 Celsius) degrees under direct sunshine.
Note: The heat index, also known as 'felt air temperature' or 'real feel', takes into account both air temperature and humidity to illustrate what people actually feel. The effect of weather is individual, with a variety of people experiencing it differently due to distinctions in body mass, height, and level of activity. One should be aware that direct sunshine can amplify the perceived temperature, raising the heat index by as much as 15 Fahrenheit (8 Celsius) degrees. Heat index values are particularly relevant to children. Typically, young kids are at a higher risk than adults since they sweat less. Also, the larger skin surface in proportion to their small bodies and the heightened heat production due to their active nature adds to their vulnerability.
As a reaction to high temperatures, the human body begins to perspire, using the evaporation of sweat to lower its temperature. When the air holds a significant amount of moisture, the efficiency of the evaporation process is decreased, preventing the body from cooling down efficiently, leading to the sensation of overheating. Accumulating heat beyond the body's cooling measures leads to rising temperatures and potential ailments.
Humidity
The average relative humidity in August is 75%.Rainfall
In Barnwell, in August, during 18 rainfall days, 2.91" (74mm) of precipitation is typically accumulated. In Barnwell, during the entire year, the rain falls for 155.3 days and collects up to 29.37" (746mm) of precipitation.Snowfall
March through November are months without snowfall.Daylight
In August, the average length of the day is 13h and 21min.On the first day of August, sunrise is at 6:38 am and sunset at 8:24 pm. On the last day of the month, sunrise is at 6:59 am and sunset at 7:51 pm EDT.
Sunshine
In Barnwell, the average sunshine in August is 10.4h.UV index
In August, the average daily maximum UV index is 6. A UV Index reading of 6 to 7 represents a high health hazard from exposure to the Sun's UV rays for the ordinary person.Note: During August, 6 as the daily maximum UV index converts into the following advice:
Stick with precautions and abide by sun safety procedures. Evading sunburn is essential. Make an effort to avoid direct sun exposure between 10 a.m. and 4 p.m., the peak period for UV radiation, and note that objects like parasols or canopies might not offer full sun protection. Opt for tightly woven and loose clothing to enhance protection from the Sun.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in August
Barnwell, SC
- Average high temperature in August: 89.2°F
The warmest month (with the highest average high temperature) is July (90.9°F).
The month with the lowest average high temperature is January (54.3°F).
- Average low temperature in August: 72.7°F
The month with the highest average low temperature is July (73.2°F).
The coldest month (with the lowest average low temperature) is January (39.4°F).
Average pressure in August
Barnwell, SC
- Average pressure in August: 29.99"Hg
The months with the highest atmospheric pressure are January and November (30.14"Hg).
The month with the lowest atmospheric pressure is June (29.97"Hg).
Average wind speed in August
Barnwell, SC
- Average wind speed in August: 5.6mph
The windiest months (with the highest average wind speed) are March and April (8.2mph).
The calmest month (with the lowest average wind speed) is August (5.6mph).
Average humidity in August
Barnwell, SC
- Average humidity in August: 75%
The month with the highest relative humidity is December (76%).
The month with the lowest relative humidity is January (70%).
Average rainfall in August
Barnwell, SC
- Average rainfall in August: 2.91"
The wettest month (with the highest rainfall) is December (3.39").
The driest month (with the least rainfall) is November (1.61").
Average rainfall days in August
Barnwell, SC
- Average rainfall days in August: 18 days
The month with the highest number of rainy days is July (18.3 days).
The month with the least rainy days is November (7.8 days).
Average snowfall in August
Barnwell, SC
- Average snowfall in August: 0"
The month with the highest snowfall is February (0.2").
The months with the least snowfall are March, April, May, June, July, August, September, October and November (0").
Average snowfall days in August
Barnwell, SC
- Average snowfall days in August: 0 days
The months with the highest number of snowfall days are January and February (0.3 days).
The months with the least snowfall days are April, May, June, July, August, September, October and November (0 days).
Average daylight in August /
Average sunshine in August
Barnwell, SC
- Average daylight in August: 13h and 18min
The month with the longest days is June (Average daylight: 14h and 18min).
The month with the shortest days is December (Average daylight: 10h and 0min).
- Average sunshine in August: 10h and 24min
The month with the most sunshine is July (Average sunshine: 11h and 0min).
The month with the least sunshine is December (Average sunshine: 5h and 30min).
Average sunshine days in August
Barnwell, SC
- Average sunshine days in August: 10.1 days
The month with the most sunshine days is October (20.1 days).
The month with the least sunshine days is July (9 days).
Average UV index in August
Barnwell, SC
- Average UV index in August: 6
The months with the highest UV index are June and July (UV index 7).
The months with the lowest UV index are January and December (UV index 3).
Average cloud cover in August
Barnwell, SC
- Average cloud cover in August: 31
The months with the most cloud cover are February and December (Cloud cover 41).
The month with the least cloud cover is October (Cloud cover 28).
Average visibility in August
Barnwell, SC
- Average visibility in August: 6mi
The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
